131512450 has 24 divisors (see below), whose sum is σ = 245711952. Its totient is φ = 52368720.

The previous prime is 131512427. The next prime is 131512457. The reversal of 131512450 is 54215131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131512457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5557 + ... + 17143.

It is an arithmetic number, because the mean of its divisors is an integer number (10237998).

Almost surely, 2^131512450 is an apocalyptic number.

131512450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131512450 is a deficient number, since it is larger than the sum of its proper divisors (114199502).

131512450 is a wasteful number, since it uses less digits than its factorization.

131512450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11826 (or 11821 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 131512450 is about 11467.8877741282. The cubic root of 131512450 is about 508.5366871306.

Adding to 131512450 its reverse (54215131), we get a palindrome (185727581).

The spelling of 131512450 in words is "one hundred thirty-one million, five hundred twelve thousand, four hundred fifty".